HomeMy WebLinkAbout2120 Andrews St - Disclosures - 08/12/2003Sara's Energy Scoring
813 Oxford LN
DATE FT. COLLINS, CO 80525
08/12/03 (970)377-1056
CUSTOMER: US Homes
2120 Andrews
Fort Collins ,CO
BUILDING CONDITIONS:
Interior Temp = 68 F
Volume = 24500 Cu. Ft.
Number of Stories = 2
Wind Shield Factor = 1
HOUSE TEST : Depressurized
Fan Model = 3
Performed By SARA
Data Points:
Exterior Temp = 85 F
Above Grade Surface Area = 0 Sq. Ft.
Number of Occupants = 2
House Pressure
Fan Pressure CFM
%Error
Fan Configuration
57
109
1871
—0.8
Ring A
48
87
1673
0.3
Ring A
41
73
1534
2.9
Ring A
35
52
1297
—2.6
Ring A
30
43
1181
—0.9
Ring A
26
36
1081
0.5
Ring A
Correlation Coefficient
Flow Coefficient
Exponent
r = .9960
C =
104.53
n = 0.715
Results:
Air Flow @ 50 Pascals :
1717 CFM50 +/— 1.0%
4.21 ACH50 (Air Changes Per Hour)
Effective Leakage Area (LBL) = 79.90 Square Inches +/— 7.6%
Equivalent Leakage Area (CANADA) = 159.44 Square Inches +/— 4.7%
Estimated Natural Infiltration (50 Pascal Flow Divided By 13.6)
= 127 CFM
= 63.3 CFM/OCCUPANT
= 0.31 AIR CHANGES PER HOUR